Building fire-fighting escape device

The utility model discloses a building fire-fighting escape device which relates to the technical field of fire-fighting escape equipment and comprises a building main body, escape windows are arranged on the side face of the building main body at equal intervals, a sliding strip is fixed on the outer wall of the building main body on the right sides of the escape windows through fixing columns, and a guide rail is arranged on the front face of the front end of the sliding strip. Retarding mechanisms are arranged on the inner wall of the guide rail at equal intervals and comprise first closed pipes and second closed pipes, first piston pads are slidably connected to the inner walls of the top ends of the first closed pipes, wedge-shaped blocks are fixedly connected to the surfaces of the first piston pads through first extrusion rods, and second piston pads are arranged in inner cavities of the second closed pipes; according to the fire escape device, the structural design is reasonable, the arranged sliding